Frequent Detection of HIV-1 Variants With Mixed Coreceptor Usage Among People Who Inject Drugs Infected With CRF01_AE: Possible Association With Coreceptor Switch. - Maeda, Yosuke; Chikata, Takayuki; Kuwata, Takeo; Terasawa, Hiromi; Tran, Giang Van; Matsushita, Shuzo; Sawa, Tomohiro; Hasebe, Futoshi; Takiguchi, Masafumi (Open Forum Infectious Diseases, 2026)